We quickly discovered that stop-motion requires patience and consistency.

It was also horrible trying to keep my DSLR focused. I had the auto-focus on and as the ball -Bob- moved along the screen the camera started zooming out to keep focused on Bob rather than the scene, so it forced me to actually read the manual and find out how to turn off the auto-focus.

At the end I used Photoshop to make Bob disappear into his own grave, which I had never tried before, and actually thought turned out rather well.